arch architecture bridge current damage flow Great Britain historical old peace repair river rural stone united kingdom wales water welsh agriculture cloud crop farm farmhouse farming field green hill hillside home landscape Powys sky sunlight vegetables winter autumn bridleway countryside fields footpath Gower grass nature path peaceful track tranquil view caves cliffs coastline natural Pembrokeshire rocks sea shore Aberaeron anchorage boats dinghy harbour houses moored shelter village yachts arid dry dune euphorbia Gwynedd habitat plant sand spurge Broadhaven broken cliff coast collapsed eroded erosion layers rock sedimentary worn yellow aerate background cascade dam fall rivulets streams texture wall boat haven masts yacht beams dusk end evening golden light sunrise sunset